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  • Title: Signals for specular Andreev reflection.
    Author: Zhang Q, Fu D, Wang B, Zhang R, Xing DY.
    Journal: Phys Rev Lett; 2008 Jul 25; 101(4):047005. PubMed ID: 18764360.
    Abstract:
    We report a theoretical investigation of the spin-dependent Andreev reflection at the interface of a graphene-based ferromagnet/superconductor junction. It is found that the ferromagnetic exchange interaction in the ferromagnet can suppress Andreev retroreflection but enhance the specular Andreev reflection. There is a transition between the specular Andreev reflection and Andreev retroreflection at which the shot noise vanishes and the Fano factor has a universal value. The present work provides a new method of detecting the specular Andreev reflection, which can be experimentally tested within the present-day technique.
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